From the publisher's site:
The world’s top tennis stars are hitting the courts again as SEGA’s best-selling tennis series smashes back into action on PlayStation 3, Xbox 360, PC and the Wii.
Create your own player, join the new World Tour, where you will be trained by a real-life legend of tennis, and compete for the 1 ranking against the planet’s biggest stars. Then take your character online and prove you’re the best with the new online ranking system!
With brand new courts to test your skills in, a new roll call of tennis stars to compete against and even more popular court minigames, Virtua Tennis 2009 is set to be a bigger hitter than ever before!